Year	% of GDP
1965	15.183547953103979
1966	14.45562671546203
1967	13.859649122807017
1968	17.13972087188333
1969	17.439456585942114
1970	16.860772895712017
1971	15.660463004993192
1972	14.576112412177986
1973	15.148093459567447
1974	13.225222897015119
1975	14.61467784541174
1976	15.162959130884634
1977	16.182307587024955
1978	16.34928942388985
1979	15.208761122518824
1980	14.46688320858636
1981	14.793368572801539
1982	16.52235450836733
1983	16.919249836805985
1984	16.87043852535712
1985	17.041163814598978
1986	17.775543265739344
1987	16.94771819347131
1988	16.583146664203404
1989	17.26295373257281
1990	16.356777647309002
1991	16.57106278265496
1992	16.00125494316275
1993	16.257927436404557
1994	16.328776132238932
1995	16.289189411088564
1996	15.550998358360038
1997	16.33759599710592
1998	16.428557043600847
1999	16.274737468676285
2000	16.671196667731216
2001	16.57164276894388
2002	17.226727292621547
2003	17.20115793877851
2004	16.92238371718784
2005	16.919347519763082
2006	16.708992442554234
2007	16.641097373883223
2008	16.132592287039653
2009	16.63116167778967
2010	15.153644726139035
2011	16.431096340512966
2012	16.656985085654973
2013	17.30276166539397
2014	17.32821529506053
2015	17.905574696388285
2016	18.719257316588113
2017	19.124510471858567
2018	18.387990692627472
2019	18.81653099561678
2020	21.635333910170694
2021	20.922307312441806
2022	20.49745801957437
2023	20.621900215285397